baber/WOPTO huggingface dataset:
Patent GB-402823-A (GB)
Title: Improvements in electrical impedance networks
IPC: H01P1/22
Filed: 1932-06-10
Abstract: 402,823. Sets of resistances. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.- (Assignees of Jensen, A. G.; 92, Pine Street, Maplewood, New Jersey, U.S.A.) June 10, 1932, No. 16423. Convention date, June 13, 1931. [Class 37.] A quadripole resistance network for attenuating highfrequency currents comprises series elements 11, Fig. 1, consisting of metal-coated glass or porcelain rods, and shunt elements 12 consisting of discs of similar character. An earthed cylinder 10 serves as one terminal of each of the pairs 1, 2 and 3, 4 and also as an electrostatic screen. Successive stages arc screened from one another by the discs 12. Fig. 2 shows a variable attenuator made up of simplified units of different attenuation values and giving one thousand steps from 0 to 100 decibels. Ten units of graded values, including a zero unit comprising a metal rod 43, are arranged in three wheels 21 which can be turned so as to bring three selected units into line between terminals 1, 2 at one end and 3, 4 at the other, bands 26 with terminal screws 44 serving as two of the terminals. Each unit contains one shunt disc 12, a pair of series rods 11, external flanged tubes 10, and insulating end discs 36. Electrical continuity between axially aligned units is secured by interposed spring- contact assemblages containing central conductors 32 and conducting rings 34.
Patent GB-1139824-A (GB)
Title: Resilient supporting device
Inventor: NEIDHART HERMANN JOSEPH
IPC: F16F1/54
Filed: 1966-04-14
Abstract: 1,139,824. Resilient mountings. NEIDHAKT S.A. 14 April, 1966, No. 16466/66. Heading F2S. In a resilient supporting device comprising one, or more, rubber or similarly resilient rings 6 rollably compressible between the overlapping sides of a pair of oppositely directed frustoconical load bearing members 2, 3, complete separation of the members 2, 3 is prevented by providing the member 2 with a tubular extension 1 which is adapted to engage a corresponding part in the member 3 so that the two members cannot accidentally become disengaged. The free end of the extension 1 has four outwardly directed lugs 7 upon which is mounted a circular clip 9 the latter, upon full extension of the unit, engaging corresponding lugs 8 formed on the upper end of the member 3. The members 2, 3 are assembled by passing the lugs 7 on the extension 1 between the lugs 8 on the member 3. Different lengths of the tubular extension 1 may be chosen according to the pre-loading required. In a modification, Figs. 3, 4 (not shown), the clip 9 is omitted the tubular extension (1) and the member (3) being provided with lugs (11), (12) respectively which engage each other on maximum extension of the unit, after the two members have been assembled together and turned with respect to one another through an angle of 90 degrees. Recesses (13) in the components, for the insertion of suitable tools, facilitate the turning of the members (2, 3). In a further modification the tubular extension 1 may be constructed as a separate part fitted from outside, or inside, the member 2, e.g. by screws. A burring tool for forming an out-turned lip on the bottom of the tubular extension 1 can be introduced from above or, through a suitably large opening in the bottom of the member 3, alternatively the base may be provided with an inwardly directed conical projection against which the lower end of the extension 1 may be forced to flare out the lower end of the extension. A separate base insert, or bridging piece, may be incorporated in the member 3. In an alternative arrangement a tension hook, extending downwardly through the centre of the device, is fixed, at its upper end, to the base of the members 2, the device being provided with a pair of rollable elastic rings. The members 2, 3 may be of oval cross-sectional shape and, for large devices, more than one tubular projection may be employed.
Patent GB-561434-A (GB)
Title: Improvements in electric relay systems for the automatic control of variable conditions
IPC: G05B11/01
Filed: 1942-11-20
Abstract: 561,434. Automatic control systems. ZIEBOLZ, H. Nov. 20, 1942, No. 16484. Convention date, Dec. 30, 1941. [Class 38 (iv)] Temperature; fluid pressure and flow; proportion in mixtures; &c. A beam of cathode rays is deflected in accordance with the difference between the action of means responsive to a condition and means for determining the magnitude of the condition and a device controlling the condition is energized in accordance with the deflection of the beam. Any deflecting means may be used, but electromagnetic means are described. A coil 32 energized through a resistance 35 set in accordance with a desired oven temperature may be opposed by a coil 34 energized from a thermocouple 37 and the amplified output of the cathode-ray tube 20 may actuate a spring- closed valve 12 controlling heating medium. In a modification, a single deflecting coil is energized from a potentiometer, set in a accordance with desired temperature, in series with the thermo-couple, which may be shunted. Hunting is prevented by a resistance 36 varied by valve movement. A mercury column subject to a fluid pressure to be controlled may vary resistance in circuit with a coil such as 34. Similar means may be used in maintaining constant a fluid flow. Fig. 3 shows an arrangement for maintaining between the flow rates of two fluids a ratio determined by the setting of a resistance 35. In this a variation of resistance 43a occurring on a change in rate of fluid flow in pipe 46 affects the energization of coils 32 and 34 simultaneously and in opposite senses: the same is true of resistance 48a. Specifications 563,561 and 564,382, [both in Group XL], are referred to.
Patent GB-571166-A (GB)
Title: Trolley bar or towing gear for the rear wheel of aircraft
IPC: B64F1/22
Filed: 1943-10-08
Abstract: 571,166. Trollies for aeroplanes. BLACKBURN AIRCRAFT, Ltd., and PETTY, G. E. Oct. 8, 1943, No. 16530. [Class 108 (i)] A trolley bar for use in steering the tail wheel of an aircraft by an arm 34 or for towing it (by a spring-connected towing bar) has a pair of pivoted arms 6, 7, carrying claws 8, 9 to engage spools on the ends of wheel shafts and also inwardly-projecting pins 10 to engage in the ends of hollow wheel shafts, the distance between the claws or pins being adjusted by rotating a hand wheel 23 to turn the arms 6, 7 about their pivots. The hand wheel 23 is fast with a sleeve 18 having opposite internal screw-threads at its ends engaging plugs 16, 17 carried by the arms 6, 7 ; the sleeve 18 is held against axial movement so that rotation of the wheel and sleeve cause outward or inward movement of the plugs 16, 17 to adjust the arms. The towing bar 50 shown in Fig. 2 has fixed on it slides 42, 43 which act to compress a spring 51 for absorbing shock, either as the bar 50 moves outwardly during towing action or inwardly as the bar moves in during over-running by the aircraft. Nuts 32, 33 fix the arm 34 to the carrier arms for the pivoted arms 6, 7.
Patent GB-203421-A (GB)
Title: Improvements in or relating to plaiting machines
IPC: D04C3/00
Filed: 1922-06-15
Abstract: 203,421. Barbour, T., and Suffern, W. S. June 15, 1922. Braiding-machines.-Relates to a machine for plaiting cords &c. in which two sets of yarns mounted on two flyers or cages rotating in opposite directions are plaited together by means of cam grooves and switches. The two sets of bobbins A<1>, C<1> are mounted on studs a<3>, c<3> of the discs a<1>, C, which rotate in opposite directions. Pivoted on the studs a<3> are crescent shaped switches D which deflect tubes c<6> carrying the yarns of the set C<1> alternately to the inside and the outside of the studs a<3>. The tubes c<6> are carried on arms c<8> pivoted on axles c<2> on which arms c<4> carrying the studs c<3> are also pivoted. The tubes c<6> project through and are guided by cam slots c<10> formed in the disc a<1>. The switches are arranged in pairs in different planes and their movements are limited by a rubber covered drum d<1> which acts as a stop. The bobbins are provided with drag devices consisting of spring fingers the extension of which may be regulated.
Patent GB-145494-A (GB)
Title: Improvements in radiators or coolers for internal combustion engines and in their disposition on aircraft and vehicles
IPC: F01P7/10
Filed: 1920-06-21
Abstract: 145,494. Junkers, H. Feb. 25, 1918, [Convention date]. Propelling.-The radiator c is mounted in front of a jacket or casing, for example the hood d of the motor b, in such a manner that the air, after passing through the radiator, is deflected laterally by the casing. Hinged flaps g are mounted at the rear vertical edges of the radiator, and are adjusted by means accessible to the driver so as to vary the cross-section of the air outlets and consequently the cooling effect of the radiator.
Patent GB-818737-A (GB)
Title: Improvements in and relating to the polymerization of olefin oxides
IPC: C08G65/26
Filed: 1957-05-28
Abstract: Alkylene oxides are polymerized to solid polymeric products by heating them at temperatures of 70-150 DEG  C. in presence of a carbonate of a divalent metal comprising Mg, Ca, Sr, Ba, Zn, Cd, Fe, Co, Ni, Cr and Mn or trivalent metal carbonates of the rare earth metals particularly lanthanum, the metal carbonate being present in the amount of 0.01-5 parts per 100 parts of the alkylene oxide and containing 0.01 parts absorbed or adsorbed water per 100 parts by wt. of carbonate.  The carbonates should be freed from oxygenated or thiooxygenated ions before use.  The polymers thus obtained are stated to have a "reduced" viscosity greater than 1.  Olefine oxides purified by distillation through drying agents are preferred.  The polymers obtained are soluble in water, acetonitrile, chloroform, formaldehyde, methanol, a mixture of water and higher alcohols, anisole, glycol ethers and chlorobenzene, but insoluble in ketones, acetates and carbon tetrachloride.  In examples ethylene oxide was polymerized in presence of (a) strontium carbonate, (b) calcium carbonate, (c) barium carbonate, (d) zinc carbonate, (c) cadmium carbonate, (f) ferrous carbonate, (g) cobalt carbonate, (h) nickel carbonate, (i) manganous carbonate, (j) lathanum carbonate. Propylene oxide is polymerized in presence of strontium carbonate and 1,2-epoxy butane in presence of strontium carbonate.
Patent GB-1310814-A (GB)
Title: Marking apparatus for webs
IPC: B41F13/02
Filed: 1970-04-09
Abstract: 1310814 Printing apparatus ADOLPH GOTTSCHO Inc 9 April 1970 [9 April 1969] 16964/70 Heading B6C A web 20 which is to be divided into segments by a rotating segmenting wheel 26 is printed on by a rotary printing cylinder 36 driven synchronously with the segmenting wheel 26. The printing cylinder 36 and the segmenting wheel 26 are connected by an override clutch and the printing cylinder 36 may be rotated by an auxiliary drive when the segmenting wheel 26 is stopped the connection between the printing cylinder 36 and segmenting wheel 26 being restored only when the two are aligned in registration. Preferably the printing cylinder 36 is an intaglio cylinder, and is held in split bearings so that it can easily be removed and replaced by a cylinder of a different diameter. When the printing cylinder 36 is changed the impression cylinder 38 is moved to an appropriate spacing by threaded bolts 90 and an ink well 40 is displaced along inclined guides 144 to accommodate the new cylinder. Replaceable gears in the drive train to the cylinder 36 make it possible to give a new cylinder 36 a peripheral speed which matches that of the segmenting wheel 26.
Patent GB-140359-A (GB)
Title: Process for the production of halogenated quinonic products
IPC: C08H5/00
Filed: 1919-07-07
Abstract: Halogenated lignone compounds and the like are obtained by treating with halogen or halogenating-agents, particularly chlorine, the waste liquors from the manufacture of paper by treating wood with bisulphites, alkalis, steam, &c., or waste liquors obtained in the setting of flax or other vegetable fibres. The waste liquors may be acidified and treated with steam before the treatment with halogen. In the case of bisulphite waste liquors, they may be given a preliminary treatment with alkalis or alkaline earths under pressure. The products can be obtained p  as extracts, pastes, or dried powders, and may be used in tanning.
Patent GB-1097347-A (GB)
Title: Device for continuous polymerization and polycondensation
Inventor: SCHUMANN HEINZ-DIETER
IPC: B01J19/18
Filed: 1966-04-19
Abstract: A device for continuous polymerization and polycondensation, particularly of e -amino-caprolactam, consists of two connected reaction vessels 1 and 4, both vessels having heat-exchange means, the first vessel being provided with a rotatable shaft 3 fitted with stirring discs 2 while the vessel 4 contains a rotatably mounted spiral 5.  The product is fed to vessel 1 and the trrbulence caused by rotating disc 2 provides favourable transference of heat.  The product may pass through the vessel 1 in both directions depending whether the separable gases are to be split off at the beginning or end <PICT:1097347/C3/1> of the first phase of the reaction.  The spiral 5 ensures shorter through-put times in the second vessel so that the melt undergoes less thermal damage.
Patent GB-724360-A (GB)
Title: Improvements in or relating to balances
IPC: G01G21/24
Filed: 1953-06-19
Abstract: 724,360. Weighing apparatus. METTLER, E., [trading as METTLER FABRIK FUR ANALYSENWAAGEN, E.]. June 19, 1953, [Jan. 21, 1953.] No. 17101/53. Class 143. The invention relates to a balance in which the beam 3 (preferably having a pendulum weight on its right-hand end) is pivoted at 4 on the column 1, and the goods pan 8 is above the beam and carried on a support 6 pivoted on the beam at 5, the support 6 being constrained to parallel movement by a link 10. According to the invention, the link 10 is connected to the support 6 and the column 1 by cardan joints. As shown, the joint 15 has two axes of rotation, viz. one 11 parallel to the pivots 5, 6 and one 12 vertical; while joint 24 has three axes of rotation, one 19 parallel to pivots 5, 6, one 20 parallel to axis 12, and one 21 horizontal. The axes 11, 19 are preferably constituted by ball-bearing devices.
Patent GB-384998-A (GB)
Title: Improvements in or relating to the manufacture of wooden spars
IPC: E04C3/14
Filed: 1931-06-12
Abstract: 384,998. Built-up hollow spars. GILES, F. C. M., The Shipyard, Teignmouth, Devon. June 12, 1931, No. 17140. [Class 145 (ii).] A built-up tapering hollow spar is constructed so that the longitudinal grain on its external surface is continuous. The contacting surfaces E have surface material removed from them at the ends so that when they are brought together the desired external taper is produced. The internal surfaces F of the parts are hollowed before assembling to form the internal bore, and the external surface is rounded after assembly. Specifications 8959/00, [Class 145, Wood &c.], and 188,118, [Class 145 (ii), Wood, Working], are referred to.
Patent GB-1135770-A (GB)
Title: Improvements in or relating to switching devices
Inventor: BRAITHWAITE JOHN DAVID
IPC: H01H3/54
Filed: 1965-04-23
Abstract: 1,135,770. Mechanical interrupters; actuation of switches. RANK ORGANIZATION Ltd. 6 April, 1966 [23 April, 1965], No. 17153/65. Heading H1N. A switching mechanism includes an actuating member 114 and a three-position selector member in the form of one arm 101 which preselects corresponding actions of the mechanism, the actions being effected by a control means in the form of a drive disc (not shown) bearing cams 107, 122. As shown in Fig. 1, arm 101 is set such that a projection 104 on a pivoted member 102 is in line with a projection 105 on a pawl 106. Cam 107 acts on pivoted lever 109 so that a projection 109<SP>1</SP> thereon lifts member 102, and thereby pawl 106, which permits operating lever 110 to pivot under its spring 112 so that a catch 125 on an arm 113 of lever 110 moves the actuating member 114 to open contacts 118, and a pawl 120 engages member 114 to hold the contacts open. Cam 122 restores lever 110 to its position where it is latched by pawl 106. When arm 101 is in a second position, the projection 104 on member 102 is now in line with a projection 123, Fig. 2 (not shown), on latching pawl 120, so that when cam 107 actuates levers 109 and 102 the pawl 120 releases member 114 and contacts 118 close. In the third position of arm 101, member 102 is positioned so that end 109<SP>1</SP> of lever 109 enters notch 124, Fig. 2 (not shown), of member 102, and hence does not lift it, when cam 107 actuates lever 109. Contacts 118 therefore remain unactuated and in their previous condition. An alternative mechanism has a threeposition selector member 211 which can be selectively positioned in one of three tracks 212, 213 and 214 in accordance with a command received by the mechanism. A pivoted wedgeshaped element 215 is then deflected to either side, or unaffected, as it is drawn past the selector member 211 to selectively actuate or not the pawls 206, 209 controlling the actuating member 205 and operating member 208 for switch contacts 202, 203.
Patent GB-1478081-A (GB)
Title: Securing of rivets to sheet metal portable articles
IPC: B21J15/02
Filed: 1975-04-25
Abstract: 1478081 Lacquered rivets NACANCO Ltd 25 April 1975 17190/75 Headings B2E and B2L [Also in Divisions B3 and B8] In a method of securing a rivet 13 to a sheet metal portable article 5, a protective laquer is applied to the formed rivet head 14 and to the sheet metal 5 adjacent the rivet hole 4. A rivet 13 is secured to a paint can 5 for attaching a carrying handle by locating a hole 4 in the can 5 over a centring pin 3 which is attached to a piston 7 slidable in a cylinder 6. When a rivet 13 is pressed by a punch 1 towards an anvil 2, the centring pin 3, and piston 7 are pushed down by the rivet 13 against the action of a spring 8 and lacquer 10, fed through a port 16 into the cylinder 6 from a reservoir 20, is forced through a bore 11 in the piston 7 and centring pin 3 onto the rivet head 14, which has been formed by the pin 3 and anvil 2, and onto the sheet metal 5 adjacent the rivet hole 4. The tip 12 of the pin 3 is provided with cross grooves 26 to assist distribution of the lacquer 10.
Patent GB-1194818-A (GB)
Title: Sodium Vapour Discharge Lamp
IPC: H01J61/35
Filed: 1969-04-02
Abstract: 1,194,818. Metal vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 April, 1969 [5 April, 1968], No. 17216/69. Heading H1D. [Also in Division C1] The glass envelope of a low-pressure sodium vapour discharge lamp is internally coated with a homogeneous layer of an oxide of at least one of Y and the lanthanides, which layer is transparent to sodium light and resistant to sodium vapour. The layer may be from 0À05 to 1 Ám. thick, depending on the hardness of the glass, and may be applied by contacting the inside surface of the discharge vessel at a temperature between 300‹ C. and the temperature at which the glass begins to soften with an organic compound of one or more of the metals in an oxidizing atmosphere. The compound may be a chelate e.g. an acetylactonate, dissolved in ethylene glycol monoethyl ether.
Patent GB-544561-A (GB)
Title: Improvements in or relating to wagon-tipping apparatus
IPC: B65G67/00
Filed: 1940-12-05
Abstract: 544,561. Wagon-tipping apparatus. MITCHELL, F. G. Dec. 5, 1940, No. 17351. [Class 78 (iv)] In wagon-tipping apparatus having a cradle 16 on to which the wagon is run and which is pivoted to a fixed support 10 situated at one side of the cradle, the driving-gear comprises an hydraulic or mechanically-operated ram pivotally connected with linkage having one or more links associated with the cradle. In the construction shown in Figs. 1 and 2 the wagon is run on to a platform 20 resting on fixed supports (not shown) and pivoted at 24 to a cradle 16 normally resting on a fixed chock 26. The cradle is pivoted at 40 to levers 38, 34 which are pivoted at 36 to a fixed support 10 and carry a locking bar 32 adapted to secure the wagon on the cradle when the latter is tipped. The cradle is formed with cam surfaces 28, 29, 30 engaged by a roller 52 on the plunger 50 of a hydraulic ram 46 pivoted at 47, the roller being constrained to follow an arcuate path by a link 54 pivoted at 56. When the ram is actuated the first movement lifts the platform 20 from its support and allows it to tilt about pivot 24 so that the wagon rests against a chock 42 on the cradle; further movement of the cradle causes the levers 34 to rock and bring the locking bar 32 down on the wagon to secure it in place ; still further movement of the cradle completes the tipping operation as shown in Fig. 2. In the construction shown in Fig. 4 the hydraulic ram is replaced by a screw 70 acting on a nut 76 connected by two links 78, 82 to the cradle 64. When the cradle is in its normal position the link 82 lies along the side A of the cradle. In modification of this construction the link 78 is dispensed with, the screw 70 can rock about the axis of the driving gear 73, 74, and the nut 76 is pivoted to the end of the link 82. In this case 'either the link 82 comprises a pair of parallel spaced links, one on either side of the screw so that the screw can be in alignment with the link, or a single link is used lying between two spaced apart screws. The cradle may be pivoted to the support 10 on the same axis 36 as the levers 34, and the extensions 38 of the latter instead of being connected to the cradle carry balance weights which rock the levers and secure the wagon whilst it is being tipped.